PR Summary

Updates PR template and automatically generated release notes.

Checklist

[x] Pull Request has a meaningful title.
[x] Summarized changes.
[x] Pull Request is ready to merge & is not WIP.
[ ] Added tests / only testable interactively.
- Make sure you add a new test if old tests do not effectively test the code changed.
[ ] Added documentation / opened issue to track adding documentation at a later date.